motor problems 04 600 HO?

[liftlar83]

Hi!

I'm from Austria and i hope someone can help me!

If the motor is warm and i turn the throttle the first time the motor has a lot of power and good acceleration but if i open the throttle twice the motor has no acceleration anymore an it's running slow. I'm realy frustrated!! What can i do? What can it be?

PS: Spark plugs are ok; Main Jet 340 (1100m); fuel is 98 octane;


Please help me..

Thanks a lot!!!

 

[michigansnowhawk]

Possible coil or wiring to the coil. Ihave seen a few coils go bad and cause a similar problem. Also check your rings!!!!!!!!!!!!! 04 600's had ring flaking problems. It is a repair that is covered by rotax. If the engine ran hot, the rings would start to chip, or flake, and cause a whole lot of engine problems.

If you dont have a manual, download the 2006 manual from http://www.michigan-snowhawk.com/techinfo.html
It is both an owners manual, and a service manual.



Ed

 

[cjgodden]

You need to determine if it is spark, fuel or clutch related. Get some spark testers and run it with the hood off, watch and see if you are loosing spark. Check your carbs and reeds, are they in good shape? Ring flaking is a issue with the 04 600's as stated above, you can usually detect this with a compression test, make sure the engine is at operating temp when checking compression. When was the last time the clutches were cleaned? how about driven spring tension? Give us some more info maybe we can help you narrow it down.

 

[liftlar83]

Thanks for your answers!

The Hawk is new, about 15 hours and the rings are damaged? If i change the rings (where can i get them?) the problem will come again or are there any modifications at the rings so that i have change them only once?

Clutch is on stock setup and i haven't done anything on it! (Will have a look if everything is ok) but i need some special tools for dismounting.

Carbs and reeds are ok; clean and no cracks or else

Can i start the engine with a damaged coil?

Does the motor works with 98 octane fuel?


hope to hear from you

thanks for your help

 

[michigansnowhawk]

The rings on an 04 600 were being replaced with updated rings.

The easiest, and cleanest way to get a quick look at the rings on a hawk is to remove the exhaust manifold, and you can see right into the cylinders to determine if the rings are flaking, and chewing up the cylinders.

But as far as your problem goes, be sure that the fuel line is not pinched, or kinked coming from the fuel tank.

 

[Hawkified]

what to check.

check the stattor, had the same problem today and eliminated everything else. I have an 04 600 that would run great when it was cold and lose power as it warmed up. Gonna change the stattor this week, will let you know how it comes out.

 

[Hawkified]

stattor problem fixed

Well I did change the stator and it runs great now. 229 bucks, also found that the spark plug boots were bad and replaced them too.

 

[liftlar83]

Thanks for your information!

Whats going on with the stator? And how can i find it out if it is the stator?...only with changing the stator i think.
Ok were can i get them? Do you think it's a problem to send it to austria?
I would buy it in USA or CAN because it's a lot cheaper then by us!!! (1eur=1,55$)

Thanks and a nice day!